19 May
2016
19 May
'16
10:49 a.m.
See figure: http://zak08.livejournal.com/28922.html
Четверг, 19 мая 2016, 17:44 +03:00 от Zak Seidov via math-fun <math-fun@mailman.xmission.com>:
Given any triangle (say 3-4-5 one), inscribe two not-intersecting triangles, total perimeter of which is equal to perimeter of "mother" triangle. It seems that there are infinitely many such kid-pairs for any mother-triangle. Zak
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